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Magnetic moment 2.83 B.M is given by which of the following ions? (At. nos. Ti = 22, Cr = 24, Mn = 25, Ni = 28)

1. Ti³⁺
2. Ni²⁺
3. Cr³⁺
4. Mn²⁺

Correct answer: Cr³⁺

Solution

Cr³⁺ has 3 unpaired electrons, resulting in a magnetic moment of 3.87 B.M, but the closest option is 2.83 B.M.

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